<div class="span3">
    <ul class="nav nav-list bs-docs-sidenav">
        <li>
            <a href="<?php echo(URL); ?>admin/categorias"><b class="icon-tags"></b> Categor&iacute;as</a>
        </li>
        <li class="collapseProductos">
            <a href="javascript:void(0);" data-toggle="collapse" data-target="#collapseProductos"><i class="icon-chevron-down"></i><b class="icon-th-large"></b> Productos</a>
            <ul id="collapseProductos" class="collapse nav nav-list bs-docs-sidenav sub">
                <li>
                    <a href="<?php echo(URL); ?>admin/producto/"><b class="icon-chevron-right"></b> Cargar</a>
                    <a href="<?php echo(URL); ?>admin/"><b class="icon-chevron-right"></b> Editar</a>
                </li>
            </ul>
        </li>
        <li class="collapseSlider">
            <a href="javascript:void(0);" data-toggle="collapse" data-target="#collapseSlider"><i class="icon-chevron-down"></i><b class="icon-picture"></b> Slider</a>
            <ul id="collapseSlider" class="collapse nav nav-list bs-docs-sidenav sub">
                <li>
                    <a href="<?php echo(URL); ?>admin/slider/"><b class="icon-chevron-right"></b> Cargar</a>
                    <a href="<?php echo(URL); ?>admin/slider-listado/"><b class="icon-chevron-right"></b> Editar</a>
                </li>
            </ul>
        </li>
        <li>
            <a href="<?php echo(URL); ?>admin/clientes"><b class="icon-user"></b> Clientes</a>
        </li>
        <li>
            <a href="<?php echo(URL); ?>admin/salir"><b class="icon-off"></b> Salir</a>
        </li>
    </ul>
</div>